Imperial College London

DrJavierBarria

Faculty of EngineeringDepartment of Electrical and Electronic Engineering

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+44 (0)20 7594 6275j.barria Website

 
 
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1012Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

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82 results found

Garcia-Trevino E, Hameed MZ, Barria JA, Data stream evolution diagnosis using recursive wavelet densityestimators, ACM Transactions on Knowledge Discovery From Data, ISSN: 1556-472X

Data streams are a new class of data that is becoming pervasively important in a wide range of applications,ranging from sensor networks, environmental monitoring to finance.In this paper, we propose a novelframework for the online diagnosis of evolution of multidimensional streaming data which incorporatesRecursive Wavelet Density Estimators into the context of Velocity Density Estimation. In the proposedframework changes in streaming data are characterized by the use oflocalandglobal evolution coefficients.In addition, we propose for the analysis of changes in the correlation structure of the data a recursiveimplementation of the Pearson correlation coefficient using exponential discounting. Two visualisationtools, namely temporal and spatial velocity profiles, are extended inthe context of the proposed framework.Three are the main advantages of the proposed method over previous approaches: 1) the memory storagerequired is minimal and independent of any window size; 2) it has a significantly lower computationalcomplexity; and 3) it makes possible the fast diagnosis of data evolution atall dimensions and at relevantcombinations of dimensions with only one pass of the data. With the help offour examples, we show theframework’s relevance in a change detection context and its potential capability for real world applications.

JOURNAL ARTICLE

Milojevic M, Barria J, Early warnings dissemination for urban micro-scale monitoring using vehicular sensor network, 5th International Conference on Models and Technologies for Intelligent Transportation Systems (MT-ITS 2017), Publisher: IEEE

This paper presents the beaconless multi-hopDecentralised Dissemination of Warnings (DDW) mechanismfor micro-scale monitoring applications in urban environments.It is designed for a Vehicular Sensor Network (VSN) basedon mobile nodes with limited resources. Mobile nodes senseand generate high pollution levels early warnings in nearreal-time. The warning messages are disseminated toward StaticMonitoring Units used by the local authorities to monitoronsets of harmful pollution level episodes. The DDW is adistance-based mechanism where a receiving node calculatesthe waiting time before rebroadcsting the message based onthe distance from the sending node and the distance to theStatic Monitoring Units. The DDW mechanism performance isevaluated in an urban environment with different number ofmobile nodes in the network. Results show that the proposedmechanism collects more non-duplicated warnings at the StaticMonitoring Units than other evaluated dissemination protocols.It is also shown the DDW mechanism reduces the amount ofduplicated warning messages sent in the network, which isespecially important when mobile nodes are resource constrained.

CONFERENCE PAPER

Milojevic M, Barria JA, 2017, Decentralized Data Fusion for Urban Micro-scale Monitoring Using Mobile Sensor Network, International Conference on Networked Systems (NetSys), Publisher: IEEE

CONFERENCE PAPER

Hamid QR, Barria JA, 2016, Congestion Avoidance for Recharging Electric Vehicles Using Smoothed Particle Hydrodynamics, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 31, Pages: 1014-1024, ISSN: 0885-8950

JOURNAL ARTICLE

Milojevic M, Barria JA, 2016, Decentralized Data Dissemination and Harvesting for Urban Monitoring, 27th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Publisher: IEEE, Pages: 2085-2090

CONFERENCE PAPER

Thajchayapong S, Barria JA, 2015, Spatial Inference of Traffic Transition Using Micro-Macro Traffic Variables, IEEE Transactions on Intelligent Transportation Systems, Pages: 854-864, ISSN: 1524-9050

JOURNAL ARTICLE

Garcia-Trevino ES, Barria JA, 2014, Structural Generative Descriptions for Time Series Classification, IEEE TRANSACTIONS ON CYBERNETICS, Vol: 44, Pages: 1978-1991, ISSN: 2168-2267

JOURNAL ARTICLE

Hamid QR, Barria JA, 2013, Distributed Recharging Rate Control for Energy Demand Management of Electric Vehicles, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 28, Pages: 2688-2699, ISSN: 0885-8950

JOURNAL ARTICLE

Kim J, Barria JA, Chang M, Leung VCMet al., 2013, Special Issue on Embedded Systems for Interactive Multimedia Services (ES-IMS), ACM TRANSACTIONS ON EMBEDDED COMPUTING SYSTEMS, Vol: 12, ISSN: 1539-9087

JOURNAL ARTICLE

Thajchayapong S, Garcia-Trevino ES, Barria JA, 2013, Distributed Classification of Traffic Anomalies Using Microscopic Traffic Variables, IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, Vol: 14, Pages: 448-458, ISSN: 1524-9050

JOURNAL ARTICLE

Garcia-Trevino ES, Barria JA, 2012, Online wavelet-based density estimation for non-stationary streaming data, COMPUTATIONAL STATISTICS & DATA ANALYSIS, Vol: 56, Pages: 327-344, ISSN: 0167-9473

JOURNAL ARTICLE

Lent R, Minero M, North R, Barria Jet al., 2012, Evaluating Mobility Models in Participatory Sensing, ACM international workshop on Mission-oriented wireless sensor networking, Publisher: ACM, Pages: 3-8

CONFERENCE PAPER

Yang Q, Laurenson DI, Barria JA, 2012, On the Use of LEO Satellite Constellation for Active Network Management in Power Distribution Networks, IEEE TRANSACTIONS ON SMART GRID, Vol: 3, Pages: 1371-1381, ISSN: 1949-3053

JOURNAL ARTICLE

Barria JA, Thajchayapong S, 2011, Detection and Classification of Traffic Anomalies Using Microscopic Traffic Variables, IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, Vol: 12, Pages: 695-704, ISSN: 1524-9050

JOURNAL ARTICLE

Lent R, Barria J, 2011, Towards Reliable Mobile Ad Hoc Networks, Mobile Ad-hoc Networks: Protocol Design, Pages: 99-120, ISBN: 978-953-307-402-3

BOOK CHAPTER

Yang Q, Barria JA, Green TC, 2011, Communication Infrastructures for Distributed Control of Power Distribution Networks, IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, Vol: 7, Pages: 316-327, ISSN: 1551-3203

JOURNAL ARTICLE

Ahmad M, Alexandrou I, Al-Nuaimy W, Amavasai BP, An YY, Ariwa E, Arteche J, Audrino F, Ayesh A, Baber C, Bailey C, Balkan N, Barria J, Bartosova J, Benkrid K, Bleijs H, Bluck M, Bose I, Bouzas PR, Braiden PM, Brdys M, Burriesci G, Cannataro M, Carvalho A, Chang CC, Chen D, Chen GG, Chen YS, Chiclana F, Cooke A, Das DB, Davis DN, Dayoub I, Deb S, Demetriou IC, Devai F, Dilmaghani RS, Dini D, Drikakis D, Durkan C, Durodola J, Etebar K, Fenn P, Figueiredo A, Florou G, Freear S, Gabrys B, Galbraith GH, Gaskell PH, Gaura E, Ge ZQ, Ghafouri-Shiraz H, Ghavami M, Giannopoulos K, Gonzalez REP, Gracia AM, Grecos C, Guan L, Gulpinar N, Guo R, Guo Y, Hardalupas Y, He L, Herrero JR, Hicks BJ, Hines EL, Hodgson S, Horsfall A, Hosein P, Hu F, Hu H, Ijomah W, Ming J, James A, Jancovic P, Jhumka A, Kamareddine F, Kannan R, Karsligil ME, Katircioglu ST, Khalid A, Kokossis A, Kontis K, Kulekci MO, Laukaitis A, Leeson M, Limbachiya MC, Li L, Li L, Lin P, Ling WK, Macias Lopez EM, Lovas T, Luglio M, Mainardi S, Mahanti PK, Marinos I, Maropoulos P, Mativenga P, Mavrommatis Get al., 2010, WCE 2010 - World Congress on Engineering 2010: Preface, WCE 2010 - World Congress on Engineering 2010, Vol: 2

JOURNAL ARTICLE

Han J, Krishnan R, Polak JW, Barria Jet al., 2010, A new method for probabilistic traffic state identification using loop detector data: theory and empirical results, 42nd Annual Meeting of the Universities Transport Study Group

CONFERENCE PAPER

Han J, Polak JW, Barria J, Krishnan Ret al., 2010, On the estimation of space-mean-speed from inductive loop detector data, TRANSPORTATION PLANNING AND TECHNOLOGY, Vol: 33, Pages: 91-104, ISSN: 0308-1060

JOURNAL ARTICLE

Regner T, Barria JA, Pitt JV, Neville Bet al., 2010, Governance of digital content in the era of mass participation, ELECTRONIC COMMERCE RESEARCH, Vol: 10, Pages: 99-110, ISSN: 1389-5753

JOURNAL ARTICLE

Thajchayapong S, Barria JA, 2010, Anomaly Detection using Microscopic TrafficVariables on Freeway Segments, Transportation Research Board 89th Annual Meeting

This paper proposes and assesses the effectiveness of monitoring vehicular traffic anomalies usingmicroscopic traffic variables, namely relative speed and inter-vehicle spacing. We present analgorithm that detects transient changes in traffic patterns using microscopic traffic variables. Inparticular, we show that when applied to real-world scenarios, our algorithm can use the varianceof statistics of relative speed to detect traffic anomalies and precursors to non-recurring traffic congestion.The performance of the proposed algorithm is also assessed using a microscopic trafficsimulation environment, where we show that with minimum prior knowledge, the proposed algorithmhas comparable performance to an ideally placed loop detector monitoring the standarddeviation of speed. The algorithm also performs very well even when the microscopic traffic variablesare available only from a fraction of the complete population of vehicles.

CONFERENCE PAPER

Thajchayapong S, Barria JA, Garcia-Trevino E, 2010, Lane-level traffic estimations using microscopic traffic variables, Proceedings of 13th IEEE Conference on Intelligent Transportation Systems, Publisher: IEEE, Pages: 1189-1194

CONFERENCE PAPER

Alarcon-Aquino V, Barria JA, 2009, CHANGE DETECTION IN TIME SERIES USING THE MAXIMAL OVERLAP DISCRETE WAVELET TRANSFORM, LATIN AMERICAN APPLIED RESEARCH, Vol: 39, Pages: 145-152, ISSN: 0327-0793

JOURNAL ARTICLE

Lent R, Barria JA, 2009, Sensor-Aided Routing for Mobile Ad Hoc Networks, Wireless Sensor Networks Symposium (IWCMC)

CONFERENCE PAPER

Regner T, Barria JA, 2009, Do consumers pay voluntarily? The case of online music, JOURNAL OF ECONOMIC BEHAVIOR & ORGANIZATION, Vol: 71, Pages: 395-406, ISSN: 0167-2681

JOURNAL ARTICLE

Regner T, Barria JA, Pitt JV, Neville Bet al., 2009, An artist life cycle model for digital media content: Strategies for the Light Web and the Dark Web, ELECTRONIC COMMERCE RESEARCH AND APPLICATIONS, Vol: 8, Pages: 334-342, ISSN: 1567-4223

JOURNAL ARTICLE

Thajchayapong S, Barria JA, 2009, Detection of Lane-Blocking on Freeway Segments using Relative Speed and Lane Changing Trajectory, 9th International Conference on Intelligent Transport Systems Telecommunications, Publisher: IEEE, Pages: 256-261

CONFERENCE PAPER

Yang Q, Barria JA, 2009, ICT systems for managing medium voltage active distribution grids, 35th Annual Conference of the IEEE-Industrial-Electronics-Society, Publisher: IEEE, Pages: 3405-+, ISSN: 1553-572X

CONFERENCE PAPER

Yang Q, Barria JA, Aramburo CAH, 2009, Communication infrastructures to facilitate regional voltage control of active radial distribution networks, 52nd IEEE International Midwest Symposium on Circuits and Systems, Publisher: IEEE, Pages: 284-+, ISSN: 1548-3746

CONFERENCE PAPER

Yang Q, Barria JA, Aramburo CAH, 2009, A Communication System Architecture for Regional Control of Power Distribution Networks, 7th IEEE International Conference on Industrial Informatics, Publisher: IEEE, Pages: 372-+, ISSN: 1935-4576

CONFERENCE PAPER

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